@inproceedings{SAS:12, address = {Boston, MA, USA}, author = {Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd}, booktitle = {Proc. Fourth ASE/IEEE International Conference on Social Computing (SocialCom)}, interhash = {9bc5d42018dbe8b926be214190258b3c}, intrahash = {be5ae4b92170e7c595f5fdcac15b4786}, publisher = {IEEE Computer Society}, title = {{On the Predictability of Human Contacts: Influence Factors and the Strength of Stronger Ties}}, url = {http://www.kde.cs.uni-kassel.de/atzmueller/paper/scholz-on-f2f-predictability-socialcom-2012.pdf}, year = 2012 } @inproceedings{MacekASS11, address = {Milwaukee, WI, USA, June 25-28, 2012}, author = {Macek, Bjoern Elmar and Scholz, Christoph and Atzmueller, Martin and Stumme, Gerd}, booktitle = {23rd ACM Conference on Hypertext and Social Media, HT '12}, interhash = {5ccd00a47cae3a59c804ee294e127ee7}, intrahash = {0295e33864389c0233f9dd0c8c16dafe}, note = {Best Paper}, pages = {245-254}, publisher = {ACM}, title = {Anatomy of a Conference}, url = {http://dl.acm.org/citation.cfm?id=2309996}, year = 2012 } @inproceedings{BAKHSS:11, address = {Chemnitz}, author = {Behrenbruch, Kay and Atzmueller, Martin and Kniewel, Romy and Hoberg, Sebastian and Stumme, Gerd and Schmidt, Ludger}, booktitle = {GfA-Frühjahrskongress}, interhash = {bb1435b451f54abf143ea892375abf55}, intrahash = {addbaaba7aec8360e23284c849e216ad}, title = {Gestaltung technisch-sozialer Vernetzung in der Arbeitsorganisation: Untersuchung zur Nutzerakzeptanz von RFID-Technologie}, year = 2011 } @inproceedings{ADHMS:11, author = {Atzmueller, Martin and Doerfel, Stephan and Hotho, Andreas and Mitzlaff, Folke and Stumme, Gerd}, booktitle = {Proc. Workshop on Mining Ubiquitous and Social Environments (MUSE 2011) at ECML/PKDD 2011}, interhash = {49e97def917e352ca21ab2e3eb7bd88a}, intrahash = {1fe037ea2712b205c564243d67840059}, title = {Face-to-Face Contacts during a Conference: Communities, Roles, and Key Players}, year = 2011 } @inproceedings{scholz2011resourceaware, author = {Scholz, Christoph and Doerfel, Stephan and Atzmueller, Martin and Hotho, Andreas and Stumme, Gerd}, booktitle = {Working Notes of the LWA 2011 - Learning, Knowledge, Adaptation}, interhash = {d81c55cdcdf8ee331595bbb4d6fd51d6}, intrahash = {56b6a20c253a6f23dc2005d3820e793a}, title = {Resource-Aware On-Line RFID Localization Using Proximity Data}, year = 2011 } @article{cattuto2010dynamics, abstract = { Background

Digital networks, mobile devices, and the possibility of mining the ever-increasing amount of digital traces that we leave behind in our daily activities are changing the way we can approach the study of human and social interactions. Large-scale datasets, however, are mostly available for collective and statistical behaviors, at coarse granularities, while high-resolution data on person-to-person interactions are generally limited to relatively small groups of individuals. Here we present a scalable experimental framework for gathering real-time data resolving face-to-face social interactions with tunable spatial and temporal granularities.

 Methods and Findings

We use active Radio Frequency Identification (RFID) devices that assess mutual proximity in a distributed fashion by exchanging low-power radio packets. We analyze the dynamics of person-to-person interaction networks obtained in three high-resolution experiments carried out at different orders of magnitude in community size. The data sets exhibit common statistical properties and lack of a characteristic time scale from 20 seconds to several hours. The association between the number of connections and their duration shows an interesting super-linear behavior, which indicates the possibility of defining super-connectors both in the number and intensity of connections.

 Conclusions

Taking advantage of scalability and resolution, this experimental framework allows the monitoring of social interactions, uncovering similarities in the way individuals interact in different contexts, and identifying patterns of super-connector behavior in the community. These results could impact our understanding of all phenomena driven by face-to-face interactions, such as the spreading of transmissible infectious diseases and information.

}, author = {Cattuto, Ciro and den Broeck, Wouter Van and Barrat, Alain and Colizza, Vittoria and Pinton, Jean-François and Vespignani, Alessandro}, doi = {10.1371/journal.pone.0011596}, interhash = {ef601366d60939c7d4dd8e2509932bfb}, intrahash = {0e0e2b183404405b99ffab0b1ca81d5a}, journal = {PLoS ONE}, month = {07}, number = 7, pages = {e11596}, publisher = {Public Library of Science}, title = {Dynamics of Person-to-Person Interactions from Distributed RFID Sensor Networks}, url = {http://dx.doi.org/10.1371%2Fjournal.pone.0011596}, volume = 5, year = 2010 } @article{andr2005measuring, abstract = {This publication explores the degree of accuracy to which the propagation delay of WLAN packets can be measured using today’s commercial, inexpensive equipment. The aim is to determine the distance between two wireless nodes for location sensing applications. We conducted experiments in which we measured the time difference between sending a data packet and receiving the corresponding immediate acknowledgement. We found the propagation delays correlate closely with distance, having only a measurement error of a few meters. Furthermore, they are more precise than received signal strength indications. To overcome the low time resolution of the given hardware timers, various statistical methods are applied, developed and analyzed. For example, we take advantage of drifting clocks to determine propagation delays that are forty times smaller than the clocks’ quantization resolution. Our approach also determines the frequency offset between remote and local crystal clocks. ER -}, author = {Günther, André and Hoene, Christian}, interhash = {9c2567a32488c5b74fa92197cffd97eb}, intrahash = {ba15c6fcd227670705635293a4cf7206}, journal = {NETWORKING 2005}, pages = {768--779}, title = {Measuring Round Trip Times to Determine the Distance Between WLAN Nodes}, url = {http://dx.doi.org/10.1007/11422778_62}, year = 2005 } @misc{Barrat2008, abstract = { In this paper we present an experimental framework to gather data on face-to-face social interactions between individuals, with a high spatial and temporal resolution. We use active Radio Frequency Identification (RFID) devices that assess contacts with one another by exchanging low-power radio packets. When individuals wear the beacons as a badge, a persistent radio contact between the RFID devices can be used as a proxy for a social interaction between individuals. We present the results of a pilot study recently performed during a conference, and a subsequent preliminary data analysis, that provides an assessment of our method and highlights its versatility and applicability in many areas concerned with human dynamics. }, author = {Barrat, Alain and Cattuto, Ciro and Colizza, Vittoria and Pinton, Jean-Francois and den Broeck, Wouter Van and Vespignani, Alessandro}, interhash = {7868941dd765a5a1f02df5cbfe49c9ef}, intrahash = {f1fb2322336e3f1c7336b0d475311d42}, note = {cite arxiv:0811.4170 }, title = {High resolution dynamical mapping of social interactions with active RFID}, url = {http://arxiv.org/abs/0811.4170}, year = 2008 }